Weight Functions and Stress Intensity Factors for Eccentric Through Cracks in a 3-D Rectangular Plate Subjected to In-Plane Loading
Three unknown coefficient weight functions for eccentric through cracks in a 3-D rectangular plate subjected to in-plane loading are proposed.3-D finite element models of cracked rectangular plates within the whole range of crack aspect ratios,i.e.,0≤e/W≤0.8,0.08≤a/(W-e)≤0.9,were established to obtain a reference SIF database for both crack points A and B,rather than 2-D finite element models.To improve the accuracy of the weight function,the coefficients were derived from this database using the Binary Lagrange Interpolation Method instead of Curve-Fitting Expression.Comparisons of stress intensity factors calculated using the present weight functions with finite element data for the high-order power law and residual stress distributions show high accuracy of the present weight functions.
Weight functions Stress intensity factors eccentric through cracks 3-D rectangular plate in-plane loading
X.T.Hu X.Jia Y.D.Song
Jiangsu Province Key Laboratory of Aerospace Power System,Nanjing University of Aeronautics and Astr State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing 210016,China
国际会议
2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)
天津
英文
8-14
2016-05-26（万方平台首次上网日期，不代表论文的发表时间）